class.ilRepositoryObjectDetailSearch.php

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<?php
/* Copyright (c) 1998-2009 ILIAS open source, Extended GPL, see docs/LICENSE */
 
include_once './Services/Search/classes/class.ilSearchSettings.php';
 
class ilRepositoryObjectDetailSearch
{
        protected $settings = null;
        
        protected $obj_id;
        protected $type;
        protected $query_string;
        
        public function __construct($a_obj_id)
        {
                $this->obj_id = $a_obj_id;
                $this->type = ilObject::_lookupType($this->getObjId());
                
                $this->settings = ilSearchSettings::getInstance();
        }
        
        public function getSettings()
        {
                return $this->settings;
        }
        
        public function getObjId()
        {
                return $this->obj_id;
        }
        
        public function getType()
        {
                return $this->type;
        }
        
        
        public function setQueryString($a_query)
        {
                $this->query_string = $a_query;
        }
        
 
        public function getQueryString()
        {
                return $this->query_string;
        }
        
        public function performSearch()
        {
                if($this->getSettings()->enabledLucene())
                {
                        return $this->performLuceneSearch();
                }
                else
                {
                        return $this->performDBSearch();
                }
        }
        
        protected function performLuceneSearch()
        {
                include_once './Services/Search/classes/Lucene/class.ilLuceneQueryParser.php';
                try
                {
                        $qp = new ilLuceneQueryParser($this->getQueryString());
                        $qp->parse();
                } 
                catch (ilLuceneQueryParserException $e) 
                {
                        ilLoggerFactory::getLogger('src')->warning('Invalid query: ' . $e->getMessage());
                        throw $e;
                }
                
                include_once './Services/Search/classes/Lucene/class.ilLuceneSearcher.php';
                $searcher = ilLuceneSearcher::getInstance($qp);
                $searcher->highlight(array($this->getObjId()));
                
                include_once './Services/Search/classes/class.ilRepositoryObjectDetailSearchResult.php';
                $detail_search_result = new ilRepositoryObjectDetailSearchResult();
                
                if($searcher->getHighlighter() instanceof ilLuceneHighlighterResultParser)
                {
                        foreach($searcher->getHighlighter()->getSubItemIds($this->getObjId()) as $sub_id)
                        {
                                $detail_search_result->addResultSet(
                                        array(
                                                'obj_id' => $this->getObjId(),
                                                'item_id' => $sub_id,
                                                'relevance' => $searcher->getHighlighter()->getRelevance($this->getObjId(),$sub_id),
                                                'content' => $searcher->getHighlighter()->getContent($this->getObjId(),$sub_id)
                                        )
                                );
                        }
                }
                return $detail_search_result;
        }
        
        
        protected function performDBSearch()
        {
                // query parser
                include_once 'Services/Search/classes/class.ilQueryParser.php';
 
                $query_parser = new ilQueryParser($this->getQueryString());
                
                $query_parser->setCombination(
                                ($this->getSettings()->getDefaultOperator() == ilSearchSettings::OPERATOR_AND) ? 
                                QP_COMBINATION_AND :
                                QP_COMBINATION_OR
                );
                $query_parser->parse();
                
                if(!$query_parser->validate())
                {
                        throw new Exception($query_parser->getMessage());
                }
                include_once 'Services/Search/classes/class.ilSearchResult.php';
                $search_result = new ilSearchResult();
                
                include_once 'Services/Search/classes/class.ilObjectSearchFactory.php';
                $search = ilObjectSearchFactory::getByTypeSearchInstance($this->getType(), $query_parser);
                
                switch($this->getType())
                {
                        case 'wiki':
                                $search->setFilter(array('wpg'));
                                break;
                }
                
                $search->setIdFilter(array($this->getObjId()));
                
                $search_result->mergeEntries($search->performSearch());
                
                include_once './Services/Search/classes/class.ilRepositoryObjectDetailSearchResult.php';
                $detail_search_result = new ilRepositoryObjectDetailSearchResult();
                
                foreach($search_result->getEntries() as $entry)
                {
                        foreach((array) $entry['child'] as $child)
                        {
                                $detail_search_result->addResultSet(
                                                array(
                                                        'obj_id' => $entry['obj_id'],
                                                        'item_id' => $child
                                                )
                                );
                        }
                }
                return $detail_search_result;
        }
}
?>